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kernel: use .rel.ro

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This commit is contained in:
Michael Scire 2020-01-31 03:37:49 -08:00
parent 00b093ec62
commit 86eea62cd8
2 changed files with 37 additions and 31 deletions
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2
libraries/config/templates/mesosphere.mk
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@ -12,7 +12,7 @@ export CFLAGS := $(ATMOSPHERE_CFLAGS) $(SETTINGS) $(DEFINES) $(INCLUDE)
export CXXFLAGS := $(CFLAGS) $(ATMOSPHERE_CXXFLAGS) export CXXFLAGS := $(CFLAGS) $(ATMOSPHERE_CXXFLAGS)
export ASFLAGS := $(ATMOSPHERE_ASFLAGS) $(SETTINGS) $(DEFINES) export ASFLAGS := $(ATMOSPHERE_ASFLAGS) $(SETTINGS) $(DEFINES)
export LDFLAGS = -specs=$(TOPDIR)/$(notdir $(TOPDIR)).specs -nostdlib -nostartfiles -g $(SETTINGS) -Wl,-Map,$(notdir $*.map) export LDFLAGS = -specs=$(TOPDIR)/$(notdir $(TOPDIR)).specs -nostdlib -nostartfiles -g $(SETTINGS) -Wl,-Map,$(notdir $*.map) -Wl,-z,relro,-z,now
export CXXWRAPS := -Wl,--wrap,__cxa_pure_virtual \ export CXXWRAPS := -Wl,--wrap,__cxa_pure_virtual \
-Wl,--wrap,__cxa_throw \ -Wl,--wrap,__cxa_throw \

66
mesosphere/kernel/kernel.ld
View file

@ -71,6 +71,42 @@ SECTIONS
. = ALIGN(8); . = ALIGN(8);
} :rodata } :rodata
.data.rel.ro :
{
*(.data.rel.ro .data.rel.ro.*)
. = ALIGN(8);
} :rodata
.preinit_array ALIGN(8) :
{
PROVIDE (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = .);
} :rodata
.init_array ALIGN(8) :
{
PROVIDE (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE (__init_array_end = .);
} :rodata
.fini_array ALIGN(8) :
{
PROVIDE (__fini_array_start = .);
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
PROVIDE (__fini_array_end = .);
} :rodata
__got_start__ = .;
.got : { *(.got) *(.igot) } :rodata
.got.plt : { *(.got.plt) *(.igot.plt) } :rodata
__got_end__ = .;
.eh_frame_hdr : { __eh_frame_hdr_start = .; *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) __eh_frame_hdr_end = .; } :rodata .eh_frame_hdr : { __eh_frame_hdr_start = .; *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) __eh_frame_hdr_end = .; } :rodata
.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) *(.eh_frame.*) } :rodata .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) *(.eh_frame.*) } :rodata
.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } :rodata .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } :rodata
@ -96,29 +132,6 @@ SECTIONS
.gnu_extab : ONLY_IF_RW { *(.gnu_extab*) } : data .gnu_extab : ONLY_IF_RW { *(.gnu_extab*) } : data
.exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } :data .exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } :data
.preinit_array ALIGN(8) :
{
PROVIDE (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = .);
} :data
.init_array ALIGN(8) :
{
PROVIDE (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE (__init_array_end = .);
} :data
.fini_array ALIGN(8) :
{
PROVIDE (__fini_array_start = .);
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
PROVIDE (__fini_array_end = .);
} :data
.ctors ALIGN(8) : .ctors ALIGN(8) :
{ {
KEEP (*crtbegin.o(.ctors)) /* MUST be first -- GCC requires it */ KEEP (*crtbegin.o(.ctors)) /* MUST be first -- GCC requires it */
@ -135,13 +148,6 @@ SECTIONS
KEEP (*(.dtors)) KEEP (*(.dtors))
} :data } :data
__got_start__ = .;
.got : { *(.got) *(.igot) } :data
.got.plt : { *(.got.plt) *(.igot.plt) } :data
__got_end__ = .;
.data ALIGN(8) : .data ALIGN(8) :
{ {
*(.data .data.* .gnu.linkonce.d.*) *(.data .data.* .gnu.linkonce.d.*)